WBX solid tappets who knows?

[itchyfeet]

Thanks weimarbus,
very helpful.

just need to get hold of a solid tappet and pushrod to see it for myself.

[DavidPallister]

My old DG had a VW recon stamp on it where the engine number should be, and official looking stickers on the rocker covers stating non-hydraulic tappets fitted.

Whether this means VW themselves fitted solid, or someone else down the line fitted them, I have no idea.

[itchyfeet]

are you sure they aren't stickers stating no adjustment?

[Smiffo]

I doubt I am the only one thinking this here...

What are the pro's and cons of hydraulic / solid set ups?

[ajsimmo]

Hydraulic:
Pros - quieter, low maintenance, pretty much self-adjusting once preset.
Cons - don't like high revs or extreme grind cams so not liked by boy racers.

Solids:
Pros - err...don't need bleeding before you fit them.
Cons - pretty much everything else.

Sent from my GT-I9305 using Tapatalk

[Smiffo]

Hydraulic:
Pros - quieter, low maintenance, pretty much self-adjusting once preset.
Cons - don't like high revs or extreme grind cams so not liked by boy racers.

Solids:
Pros - err...don't need bleeding before you fit them.
Cons - pretty much everything else.

Sent from my GT-I9305 using Tapatalk

Thanks Aj.

[itchyfeet]

The question was just to learn and because Hydraulic cams are going to run out soo.

Solids:
Pros - err...don't need bleeding before you fit them.

I wonder if you need to bleed hydraulic, imagine an engine sat for a year, or more, they drain down.

start it and it rattles bad but soon they pump up.

I have done it.

Also if hydeaulic tappet is 4mm of morememt, cam is 8mm approx valves will always open.

[ajsimmo]

Well the KS BW ones seem to need it. I meant from new, not used and sat in an engine. I wonder if they are just filled with a light oil for transport and need refilling with correct grade, because the last set I fitted new rattled like hell and I took them out again. BW replaced one under warranty (bent oiling disc). So I think it pays to strip, clean, check, refill with 15w40 and assemble prior to fitting.

Sent from my GT-I9305 using Tapatalk

[ajsimmo]

My old DG had a VW recon stamp on it where the engine number should be, and official looking stickers on the rocker covers stating non-hydraulic tappets fitted.

Whether this means VW themselves fitted solid, or someone else down the line fitted them, I have no idea.

Did it actually say that, or was it this sticker...



If so, it means no clearance adjustment necessary, as they're hydraulic.

[itchyfeet]

Anybody know what engine that is in that diagram

[ajsimmo]

Perhaps a Type 4 engine as it's air-cooled with hydraulics. Was CV in a late bay the first boxer with hydros as standard? Don't know, just guessing, as I don't do bays.
Or maybe a CT?